2010 TOYOTA SIENNA maintenance

468 4-3. Do-it-yourself maintenance
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may result in loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing serious
injury or death.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure
warning valves and transmitters, make sure to have tires serviced by
your Toyota dealer or other qualified service shop. In addition, make
sure to purchase your tire pressure warning valves and transmitters at
your Toyota dealer.
●Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels.

469
4-3. Do-it-yourself maintenance
4
Maintenance and care
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
■ Removal method
Turn the engine switch to the “LOCK” position.
Open the glove box. Slide off
the damper.
Push in each side of the glove
box to disconnect the claws.
Remove the filter case.
STEP1
STEP2
STEP3
STEP4

470 4-3. Do-it-yourself maintenance
Remove the filter from the fil-
ter case.
■ Cleaning method
If the filter is dirty, clean by
blowing compressed air
through the filter from the
downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If it is not available, have the
filter cleaned by your Toyota
dealer.
■ Replacement method
Install a new filter to the filter
case.
The“  UP” marks shown on the
filter should be pointing up.
STEP5

471
4-3. Do-it-yourself maintenance
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Maintenance and care
■
Checking interval
Inspect, clean and replace the air conditioning filter according to the mainte-
nance schedule. In dusty areas or areas with heavy traffic flow, more fre-
quent cleaning or early replacement may be required. (For scheduled
maintenance information, please refer to the “Scheduled Maintenance
Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace it if necessary.
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always
installed.
● When cleaning the filter, do not clean the filter with water.

472
4-3. Do-it-yourself maintenance
Wireless remote control batter y
Replace the battery with a new one if it is discharged.
■You will need the following:
Lithium battery (CR2032)
■ Replacing the battery
Remove the cover using a
coin protected with tape etc.
Remove the discharged trans-
mitter battery.
Insert a new battery with the
“+” terminal facing up.
STEP1
STEP2

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4-3. Do-it-yourself maintenance
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Maintenance and care
■
If the wireless remote control battery is discharged
The following symptoms may occur.
●The wireless remote control will not function properly.
● The operational range is reduced.
■ Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by your
Toyota dealer.
● Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other components inside the remote control.
● Do not bend either of the battery terminals.

474
4-3. Do-it-yourself maintenance
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the engine switch to the “LOCK” position.
The fuses are located in the following places. To check the
fuses, follow the in structions below.
Engine compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel Remove the lid.STEP1
STEP2

475
4-3. Do-it-yourself maintenance
4
Maintenance and care
Passenger’s side instrument panel
1. Open the glove box. Slideoff the damper.
2. Push in each side of the glove box to disconnect the
claws.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 478) for details about which fuse to check.
STEP3